A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To obtain an excavation head capable of collecting sediment at a bottom of a pile without using a power source by using an oscillating motion of an oscillating body.SOLUTION: An excavation mechanism 2 includes a rotating body 21 connected to a distal end of an excavation rod and rotating, and excavation means 22 provided on a lower end side of the rotating body. An enlarged diameter excavation mechanism 3 includes a pair of oscillating bodies 31 provided at positions facing each other across a rotation center of the rotating body on an outer periphery of the rotating body of the excavation mechanism such that an upper end side can oscillate around the rotation center orthogonal to the rotation center of the rotating body, and excavating means 32 provided at a lower end side of each oscillating body. When the lower end sides of the oscillating bodies are in a state in which they are opposed to each other across the rotation center of the rotating body from a state in which the lower end sides of the oscillating bodies are oscillated in mutually opposite directions, sediment sampling means 4 is constituted by each member combined so as to form a closed sediment storage space.SELECTED DRAWING: Figure 1
【課題】揺動体の揺動動作を利用することによって、動力源を用いることなく、杭孔底の土砂を採取することが可能な掘削ヘッドを得る。【解決手段】掘削機構２は、掘削ロッドの先端に連結されて回転する回転体２１と、回転体の下端側に設けられた掘削手段２２とを備え、拡径掘削機構３は、上端側が回転体の回転中心と直交する揺動中心を中心として揺動可能となるように掘削機構の回転体の外周において回転体の回転中心を挟んで対向する位置に設けられた一対の揺動体３１と、各揺動体の下端側に設けられた掘削手段３２とを備え、土砂採取手段４は、各揺動体の下端側にそれぞれ設けられて、各揺動体の下端側が互いに反対方向に揺動した状態から回転体の回転中心を挟んで対向した状態となった場合に、塞がれた土砂収容空間を形成するように組み合わされる各部材により構成された。【選択図】図１
To obtain an excavation head capable of collecting sediment at a bottom of a pile without using a power source by using an oscillating motion of an oscillating body.SOLUTION: An excavation mechanism 2 includes a rotating body 21 connected to a distal end of an excavation rod and rotating, and excavation means 22 provided on a lower end side of the rotating body. An enlarged diameter excavation mechanism 3 includes a pair of oscillating bodies 31 provided at positions facing each other across a rotation center of the rotating body on an outer periphery of the rotating body of the excavation mechanism such that an upper end side can oscillate around the rotation center orthogonal to the rotation center of the rotating body, and excavating means 32 provided at a lower end side of each oscillating body. When the lower end sides of the oscillating bodies are in a state in which they are opposed to each other across the rotation center of the rotating body from a state in which the lower end sides of the oscillating bodies are oscillated in mutually opposite directions, sediment sampling means 4 is constituted by each member combined so as to form a closed sediment storage space.SELECTED DRAWING: Figure 1
【課題】揺動体の揺動動作を利用することによって、動力源を用いることなく、杭孔底の土砂を採取することが可能な掘削ヘッドを得る。【解決手段】掘削機構２は、掘削ロッドの先端に連結されて回転する回転体２１と、回転体の下端側に設けられた掘削手段２２とを備え、拡径掘削機構３は、上端側が回転体の回転中心と直交する揺動中心を中心として揺動可能となるように掘削機構の回転体の外周において回転体の回転中心を挟んで対向する位置に設けられた一対の揺動体３１と、各揺動体の下端側に設けられた掘削手段３２とを備え、土砂採取手段４は、各揺動体の下端側にそれぞれ設けられて、各揺動体の下端側が互いに反対方向に揺動した状態から回転体の回転中心を挟んで対向した状態となった場合に、塞がれた土砂収容空間を形成するように組み合わされる各部材により構成された。【選択図】図１
EXCAVATION HEAD
掘削ヘッド
ENDO MASAMI (author)
2019-01-31
Patent
Electronic Resource
Japanese
EXCAVATION ROD, EXCAVATION HEAD AND PILE-HOLE EXCAVATION DEVICE
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