| 摘要 |
PROBLEM TO BE SOLVED: To provide a movable weir capable of keeping low the installation costs and easy in maintenance management in installing the movable weir at an overflow part.SOLUTION: A movable weir 1 comprises a sheathing board 3 in which an opening 2 for overflow is formed and a closing mechanism 4 for opening/closing the opening 2. The closing mechanism 4 includes: two door bodies 7, 8 provided so as to be movable in the width direction X of the opening 2; and a movable board 9 provided in a vertically movable manner. The movable weir 1 is constituted in such a manner that the two door bodies 7, 8 move with the movement of the movable board 9 in the separation/contact directions each other in the width direction X of the opening 2 when the movable board 9 is vertically moved. |
