Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To perform shaft excavation (first position) and enlarged diameter excavation (second position) without being affected by excavated mud.SOLUTION: A spline shaft has a constitution such that an outer drive rod 1 connected to an auger and an inner drive rod 11 including a head main body 20 having a fixed excavation blade 26 constitute a first position 51 and a second contracted position 52, and can be rotated integrally. An excavation arm 30 having a movable excavation blade 32 at its tip is attached to a swing shaft 28 of the head main body 20. One end of a guide member 43 in a direction of a shaft 18 is attached to a support ring 7 rotatably provided on the outer drive rod 1, an operation connecting member 48 is attached to the other end of the guide member 43, and the other end of the operation connecting member 48 is attached to an operating arm 35 of the excavation arm 30 to become an excavation head 50 (a) (b). A shaft part 65 of a pile hole with a diameter D5 can be excavated by the fixed excavation blade 26 in the first position and an enlarged diameter part 66 of the pile hole with a diameter D6 can be excavated by the movable excavation blade 32 in the second position, respectively (b) (d) .SELECTED DRAWING: Figure 1
【課題】掘削泥土の影響を受けることなく、軸部掘削（第１位置）と拡径部掘削（第２位置）を行う。【解決手段】オーガに連結する外駆動ロッド１と、固定掘削刃２６を有するヘッド本体２０を備える内駆動ロッド１１とで、第１位置５１と縮んだ第２位置５２とを取り、かつ一体に回転できるスプライン軸を構成する。ヘッド本体２の揺動軸２８に、先端に可動掘削刃３２を有する掘削腕３０を取り付ける。外駆動ロッド１に回転自在に設けた支持リング７に、軸１８方向のガイド部材４３の一端を取り付け、ガイド部材４３の他端に操作連結部材４８を取り付け、操作連結部材４８の他端を掘削ヘッド３０の操作腕３５に取り付けて、掘削ヘッド５０とする（ａ）（ｂ）。第１位置で固定掘削刃２６で径Ｄ５の杭穴の軸部６５を、第２位置で可動掘削刃３２で径Ｄ６の杭穴の拡径部６６を（ｂ）（ｄ）、それぞれ掘削できる。【選択図】図１
To perform shaft excavation (first position) and enlarged diameter excavation (second position) without being affected by excavated mud.SOLUTION: A spline shaft has a constitution such that an outer drive rod 1 connected to an auger and an inner drive rod 11 including a head main body 20 having a fixed excavation blade 26 constitute a first position 51 and a second contracted position 52, and can be rotated integrally. An excavation arm 30 having a movable excavation blade 32 at its tip is attached to a swing shaft 28 of the head main body 20. One end of a guide member 43 in a direction of a shaft 18 is attached to a support ring 7 rotatably provided on the outer drive rod 1, an operation connecting member 48 is attached to the other end of the guide member 43, and the other end of the operation connecting member 48 is attached to an operating arm 35 of the excavation arm 30 to become an excavation head 50 (a) (b). A shaft part 65 of a pile hole with a diameter D5 can be excavated by the fixed excavation blade 26 in the first position and an enlarged diameter part 66 of the pile hole with a diameter D6 can be excavated by the movable excavation blade 32 in the second position, respectively (b) (d) .SELECTED DRAWING: Figure 1
【課題】掘削泥土の影響を受けることなく、軸部掘削（第１位置）と拡径部掘削（第２位置）を行う。【解決手段】オーガに連結する外駆動ロッド１と、固定掘削刃２６を有するヘッド本体２０を備える内駆動ロッド１１とで、第１位置５１と縮んだ第２位置５２とを取り、かつ一体に回転できるスプライン軸を構成する。ヘッド本体２の揺動軸２８に、先端に可動掘削刃３２を有する掘削腕３０を取り付ける。外駆動ロッド１に回転自在に設けた支持リング７に、軸１８方向のガイド部材４３の一端を取り付け、ガイド部材４３の他端に操作連結部材４８を取り付け、操作連結部材４８の他端を掘削ヘッド３０の操作腕３５に取り付けて、掘削ヘッド５０とする（ａ）（ｂ）。第１位置で固定掘削刃２６で径Ｄ５の杭穴の軸部６５を、第２位置で可動掘削刃３２で径Ｄ６の杭穴の拡径部６６を（ｂ）（ｄ）、それぞれ掘削できる。【選択図】図１
PILE HOLE EXCAVATION HEAD
杭穴掘削ヘッド
TAKAI HIROAKI (Autor:in)
10.01.2019
Patent
Elektronische Ressource
Japanisch
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