A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RISING GATE TYPE BREAKWATER
To autonomously perform the standing motion of a restraining rod even if a hoist becomes inoperable.SOLUTION: A rising gate type breakwater 1 comprises: a door body 10 that stands up by buoyancy; a restraining rod 31 that stops a falling motion of the door body 10 by coming into contact with the door body 10 that stands up by buoyancy and falls down; and a drive unit 40 that causes the restraint rod 31 to rise. The drive unit 40 comprises: a hoist 42; an elevating member 48 that has a pulley 43; a counterweight 46 that can be moved up and down; a first rope 41, one end of which is connected to the hoist 42 and the other end of which is wound in the order of pulley 43 and constant pulley 44 and is connected to the counterweight 46; and a second rope 51 that is connected to the elevating member 48 and the restraining rod 31, and causes an erection force generated by the buoyancy of the restraining rod 31 to act as a descending force on the elevating member 48. An ascending force acting on the elevating member 48 due to the weight of the counterweight 46 is set to be smaller than the descending force.SELECTED DRAWING: Figure 3
【課題】巻上げ機が作動不能な状態になっても、制止ロッドの起立動作を自律的に行う。【解決手段】起伏ゲート式防波堤１は、浮力によって起立する扉体１０と、浮力によって起立し、倒伏する扉体１０が接触することにより扉体１０の倒伏動作を制止する制止ロッド３１と、制止ロッド３１を起伏動作させる駆動部４０とを備える。駆動部４０は、巻上げ機４２と、滑車４３を有する昇降部材４８と、昇降自在に設けられるカウンタウエイト４６と、一端側が巻上げ機４２に接続され、他端側が、滑車４３および定滑車４４の順に巻き掛けられ、カウンタウエイト４６に接続される第１ロープ４１と、昇降部材４８と制止ロッド３１とに接続され、制止ロッド３１の浮力によって生じる起立力を昇降部材４８に下降力として作用させる第２ロープ５１とを備え、カウンタウエイト４６の重量によって昇降部材４８に作用する上昇力が、前記下降力よりも小さく設定されている。【選択図】図３
RISING GATE TYPE BREAKWATER
To autonomously perform the standing motion of a restraining rod even if a hoist becomes inoperable.SOLUTION: A rising gate type breakwater 1 comprises: a door body 10 that stands up by buoyancy; a restraining rod 31 that stops a falling motion of the door body 10 by coming into contact with the door body 10 that stands up by buoyancy and falls down; and a drive unit 40 that causes the restraint rod 31 to rise. The drive unit 40 comprises: a hoist 42; an elevating member 48 that has a pulley 43; a counterweight 46 that can be moved up and down; a first rope 41, one end of which is connected to the hoist 42 and the other end of which is wound in the order of pulley 43 and constant pulley 44 and is connected to the counterweight 46; and a second rope 51 that is connected to the elevating member 48 and the restraining rod 31, and causes an erection force generated by the buoyancy of the restraining rod 31 to act as a descending force on the elevating member 48. An ascending force acting on the elevating member 48 due to the weight of the counterweight 46 is set to be smaller than the descending force.SELECTED DRAWING: Figure 3
【課題】巻上げ機が作動不能な状態になっても、制止ロッドの起立動作を自律的に行う。【解決手段】起伏ゲート式防波堤１は、浮力によって起立する扉体１０と、浮力によって起立し、倒伏する扉体１０が接触することにより扉体１０の倒伏動作を制止する制止ロッド３１と、制止ロッド３１を起伏動作させる駆動部４０とを備える。駆動部４０は、巻上げ機４２と、滑車４３を有する昇降部材４８と、昇降自在に設けられるカウンタウエイト４６と、一端側が巻上げ機４２に接続され、他端側が、滑車４３および定滑車４４の順に巻き掛けられ、カウンタウエイト４６に接続される第１ロープ４１と、昇降部材４８と制止ロッド３１とに接続され、制止ロッド３１の浮力によって生じる起立力を昇降部材４８に下降力として作用させる第２ロープ５１とを備え、カウンタウエイト４６の重量によって昇降部材４８に作用する上昇力が、前記下降力よりも小さく設定されている。【選択図】図３
RISING GATE TYPE BREAKWATER
起伏ゲート式防波堤
MORI TOSHIAKI (author) / YOSHIKI RYUTA (author) / MIYAMOTO KUNIE (author) / NAKAHO KYOICHI (author)
2021-05-06
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau