| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joint device for a floor which can provide sufficient strength, absorb different lengthwise and horizontal shaking motions of right and left floor skeletons, and absorb expansion shaking motions by a width of a joint part. <P>SOLUTION: The joint device for a floor 1 comprises; right and left support recesses 4 formed on an upper surface of right and left floor skeletons 3 on a joint part 2 side; center maintenance mechanisms 6 installed so that the center part is constantly set at the center part of the joint part 2; a support arm 8 pivotally supported on the center part of the center maintenance mechanisms 6; bearing rails 10 pivotally supported on the support recesses 4 by pivot pins 9; a beam 12 installed in the bearing rails 10 to be slidable; joint plate support arms 13 supported by the beam 12 and the bearing rails 10 at a predetermined interval; joint plates 15 and a center joint plate 18 installed in the joint plate support arms 13; and pantograph-like expansion/contraction link mechanisms 21 which position the joint plate support arms 13 to be constantly at a predetermined interval. <P>COPYRIGHT: (C)2012,JPO&INPIT |
