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A platform for research: civil engineering, architecture and urbanism
ATTACHMENT FOR FORMING CRUSHED STONE PILE AND CRUSHED STONE PILE FORMING DEVICE THEREWITH
To provide an attachment for forming a crushed stone pile suppressing wear due to usage of a door opening/closing a crushed stone charging hole.SOLUTION: An attachment 10 for forming a crushed stone pile forming the crushed stone pile in a space after rising from the ground and forming the space inserted in the ground, comprises: a cylindrical part 12 in which a crushed stone discharging hole 15 is formed on a side surface thereof along an axial direction; and a door 20 attached on the cylindrical part and opening/closing the crushed stone discharging hole. At least a second long side part 21b of the door 20 is located inside of an imaginary circle (12b, 50) composed of an outer peripheral surface 12b of the cylindrical part 12 and an imaginary arc 50 made by extending the outer peripheral surface when viewing the cylindrical part 12 and the door 20 in a section orthogonal to an axial line of the cylindrical part 12 at a position where the crushed stone discharging hole 15 is formed. A concave part 25 concaved from the outer peripheral surface of the cylindrical part is formed in the second long side part of the door to hold sediment in the concave part when the cylindrical part rotates in a normal direction, thereby allowing wear of a surface of the door to be suppressed.SELECTED DRAWING: Figure 3
【課題】 砕石投入孔を開閉する扉の使用による摩耗を抑制する。【解決手段】 地中に挿入されて空間を形成し、地中から上昇しつつ空間に砕石杭を形成する砕石杭形成用のアタッチメント１０であって、その側面に軸方向に沿って砕石投入孔１５が形成される円筒部１２と、円筒部に取付けられ、砕石投入孔を開閉する扉２０と、を備えている。砕石投入孔１５が形成された位置において、円筒部１２及び扉２０を円筒部１２の軸線に直交する断面でみたときに、扉２０の少なくとも第２長辺部２１ｂは、円筒部１２の外周面１２ｂと、その外周面を延長した仮想円弧５０とで構成される仮想円（１２ｂ、５０）の内側に位置する。扉の第２長辺部に、円筒部の外周面からくぼんでいる凹所２５が形成され、円筒部が正転方向に回転するときに凹所に土砂が保持されることで、扉の表面の摩耗が抑制可能となっている。【選択図】図３
ATTACHMENT FOR FORMING CRUSHED STONE PILE AND CRUSHED STONE PILE FORMING DEVICE THEREWITH
To provide an attachment for forming a crushed stone pile suppressing wear due to usage of a door opening/closing a crushed stone charging hole.SOLUTION: An attachment 10 for forming a crushed stone pile forming the crushed stone pile in a space after rising from the ground and forming the space inserted in the ground, comprises: a cylindrical part 12 in which a crushed stone discharging hole 15 is formed on a side surface thereof along an axial direction; and a door 20 attached on the cylindrical part and opening/closing the crushed stone discharging hole. At least a second long side part 21b of the door 20 is located inside of an imaginary circle (12b, 50) composed of an outer peripheral surface 12b of the cylindrical part 12 and an imaginary arc 50 made by extending the outer peripheral surface when viewing the cylindrical part 12 and the door 20 in a section orthogonal to an axial line of the cylindrical part 12 at a position where the crushed stone discharging hole 15 is formed. A concave part 25 concaved from the outer peripheral surface of the cylindrical part is formed in the second long side part of the door to hold sediment in the concave part when the cylindrical part rotates in a normal direction, thereby allowing wear of a surface of the door to be suppressed.SELECTED DRAWING: Figure 3
【課題】 砕石投入孔を開閉する扉の使用による摩耗を抑制する。【解決手段】 地中に挿入されて空間を形成し、地中から上昇しつつ空間に砕石杭を形成する砕石杭形成用のアタッチメント１０であって、その側面に軸方向に沿って砕石投入孔１５が形成される円筒部１２と、円筒部に取付けられ、砕石投入孔を開閉する扉２０と、を備えている。砕石投入孔１５が形成された位置において、円筒部１２及び扉２０を円筒部１２の軸線に直交する断面でみたときに、扉２０の少なくとも第２長辺部２１ｂは、円筒部１２の外周面１２ｂと、その外周面を延長した仮想円弧５０とで構成される仮想円（１２ｂ、５０）の内側に位置する。扉の第２長辺部に、円筒部の外周面からくぼんでいる凹所２５が形成され、円筒部が正転方向に回転するときに凹所に土砂が保持されることで、扉の表面の摩耗が抑制可能となっている。【選択図】図３
ATTACHMENT FOR FORMING CRUSHED STONE PILE AND CRUSHED STONE PILE FORMING DEVICE THEREWITH
砕石杭形成用アタッチメント及びそれを備える砕石杭形成装置
SAKAI TOSHINORI (author) / ONABE TETSUYA (author)
2021-12-13
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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