A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LAND-TYPE FLOATING BODY-TYPE FLAP GATE
PROBLEM TO BE SOLVED: To assist a rising operation for a door body and enable deceleration when the rising operation is complete, without increasing a size of a weight.SOLUTION: A land-type floating body-type flap gate 11 has a door body 2 supported at a rear edge side and a tip side that rises and swings. A wire rope 3 has one end fitted to the rear edge part of the door body 2, and a weight 5 fitted on the other end. Stationary pulleys 4a, 4b are installed on the rear edge side of the door body 2 for guiding the wire rope 3, such that the weight 5 reaches the lowermost position midway while the door body 2 is rising or falling, for assisting rising or falling of the door body when rising or falling starts, at the same time functioning as a resistance against rising or falling before completion of rising or falling. For example, the stationary pulley 4a disposed directly above the weight 5 is made to have a radius that increases in size gradually, so that the radius differs between the door body side and the weight side.EFFECT: Assisting of a rising operation of a door body and deceleration before completion of rising become possible without using a large weight, thereby enhancing degree of freedom of design and reducing costs.SELECTED DRAWING: Figure 1
【課題】ウエイトの重量を大きくすることなく扉体の起立動作の補助及び起立完了時の減速を行えるようにする。【解決手段】後端側を支点として先端側が起立搖動する扉体２を有する陸上型浮体式フラップゲート１１である。扉体２の後端部に一端を取付けたワイヤロープ３の他端にウエイト５を取付ける。扉体２が起立途中又は倒伏途中でウエイト５が最下限位置となり、起立又は倒伏の開始時には起立又は倒伏を補助する一方、起立又は倒伏の完了前には起立又は倒伏の抵抗として作用するよう、扉体２の後端側にワイヤロープ３を案内する固定滑車４ａ，４ｂを設置する。例えばウエイト５の直上に配置する固定滑車４ａを、扉体側とウエイト側で半径が異なるように、漸次拡大する半径を有する形状とする。【効果】大きなウエイトを使用することなく扉体の起立動作の補助及び起立完了時の減速を行えるようになって、設計の自由度が向上し、コストの低減も図れる。【選択図】図１
LAND-TYPE FLOATING BODY-TYPE FLAP GATE
PROBLEM TO BE SOLVED: To assist a rising operation for a door body and enable deceleration when the rising operation is complete, without increasing a size of a weight.SOLUTION: A land-type floating body-type flap gate 11 has a door body 2 supported at a rear edge side and a tip side that rises and swings. A wire rope 3 has one end fitted to the rear edge part of the door body 2, and a weight 5 fitted on the other end. Stationary pulleys 4a, 4b are installed on the rear edge side of the door body 2 for guiding the wire rope 3, such that the weight 5 reaches the lowermost position midway while the door body 2 is rising or falling, for assisting rising or falling of the door body when rising or falling starts, at the same time functioning as a resistance against rising or falling before completion of rising or falling. For example, the stationary pulley 4a disposed directly above the weight 5 is made to have a radius that increases in size gradually, so that the radius differs between the door body side and the weight side.EFFECT: Assisting of a rising operation of a door body and deceleration before completion of rising become possible without using a large weight, thereby enhancing degree of freedom of design and reducing costs.SELECTED DRAWING: Figure 1
【課題】ウエイトの重量を大きくすることなく扉体の起立動作の補助及び起立完了時の減速を行えるようにする。【解決手段】後端側を支点として先端側が起立搖動する扉体２を有する陸上型浮体式フラップゲート１１である。扉体２の後端部に一端を取付けたワイヤロープ３の他端にウエイト５を取付ける。扉体２が起立途中又は倒伏途中でウエイト５が最下限位置となり、起立又は倒伏の開始時には起立又は倒伏を補助する一方、起立又は倒伏の完了前には起立又は倒伏の抵抗として作用するよう、扉体２の後端側にワイヤロープ３を案内する固定滑車４ａ，４ｂを設置する。例えばウエイト５の直上に配置する固定滑車４ａを、扉体側とウエイト側で半径が異なるように、漸次拡大する半径を有する形状とする。【効果】大きなウエイトを使用することなく扉体の起立動作の補助及び起立完了時の減速を行えるようになって、設計の自由度が向上し、コストの低減も図れる。【選択図】図１
LAND-TYPE FLOATING BODY-TYPE FLAP GATE
陸上型浮体式フラップゲート
KIMURA YUICHIRO (author) / MORI TOSHIAKI (author) / YAMAKAWA ZENTO (author) / MIYAMOTO KUNIE (author) / NAKAHO KYOICHI (author)
2016-06-20
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau