| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor joint device which can be installed in a short time and easily without requiring the time and efforts for making a joint plate slide supporting recess which is formed on a floor surface at a joint part side of one floor skeleton, flat by mortar, and can be safely used while being prevented from being bent even if a heavy load is applied.SOLUTION: A floor joint device 1 comprises: a joint plate slide supporting recess 5 formed on a floor surface at a joint part side of one floor skeleton 4; a guide rail 8 disposed in the joint plate slide supporting recess 5; a floor joint plate 11 of which the front end portion is supported by the joint plate slide supporting recess 5 so as to move by sliding and the rear end portion is mounted to a floor surface at a joint part side of another floor skeleton 4; a cover plate 12 covering the joint plate slide supporting recess 5 in such a manner that the front end portion of the floor joint plate 11 can move by sliding; a plurality of supports 26 supporting a load applied to the cover plate 12; and a cover plate support member 13 connecting the supports in an expansible/contractable manner. |
