A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To enlarge the width of an annular cutting region in a manhole.SOLUTION: A boring device which annularly bores the wall face of a manhole from inside includes a flange member 210 and a rotation driving part for rotating and driving the flange member 210. The flange member 210 is composed so that a plurality of first arcuate cutting blades (arcuate cutting blades 220') each having a partial cylindrical form with an arcuate section, and separately arranged from each other in the circumferential direction on a plate face of the flange member 210, and a plurality of second arcuate cutting blades (arcuate cutting blades 220) having a cutting inside diameter and a cutting inside diameter different from those of the first arcuate cutting blades, each having a partial cylindrical form with an arcuate section, and separately arranged from each other in the circumferential direction on the plate face of the flange member 210, are selectively detachable.SELECTED DRAWING: Figure 2
【課題】マンホール等において円環状の切削領域の幅を大きくする。【解決手段】マンホール等の壁面を内部側から円環状に穿孔する穿孔装置は、フランジ部材２１０と、フランジ部材２１０を回転駆動する回転駆動部とを備え、フランジ部材２１０は、それぞれ断面円弧状の部分円筒形状を有し、フランジ部材２１０の板面に互いに円周方向に離間して配置される複数の第１の円弧状切削刃（円弧状切削刃２２０’）、および第１の円弧状切削刃とは切削内径及び切削内径が異なるとともに、それぞれ断面円弧状の部分円筒形状を有し、フランジ部材２１０の板面に互いに円周方向に離間して配置される複数の第２の円弧状切削刃（円弧状切削刃２２０）が、選択的に脱着可能に構成されている。【選択図】図２
PROBLEM TO BE SOLVED: To enlarge the width of an annular cutting region in a manhole.SOLUTION: A boring device which annularly bores the wall face of a manhole from inside includes a flange member 210 and a rotation driving part for rotating and driving the flange member 210. The flange member 210 is composed so that a plurality of first arcuate cutting blades (arcuate cutting blades 220') each having a partial cylindrical form with an arcuate section, and separately arranged from each other in the circumferential direction on a plate face of the flange member 210, and a plurality of second arcuate cutting blades (arcuate cutting blades 220) having a cutting inside diameter and a cutting inside diameter different from those of the first arcuate cutting blades, each having a partial cylindrical form with an arcuate section, and separately arranged from each other in the circumferential direction on the plate face of the flange member 210, are selectively detachable.SELECTED DRAWING: Figure 2
【課題】マンホール等において円環状の切削領域の幅を大きくする。【解決手段】マンホール等の壁面を内部側から円環状に穿孔する穿孔装置は、フランジ部材２１０と、フランジ部材２１０を回転駆動する回転駆動部とを備え、フランジ部材２１０は、それぞれ断面円弧状の部分円筒形状を有し、フランジ部材２１０の板面に互いに円周方向に離間して配置される複数の第１の円弧状切削刃（円弧状切削刃２２０’）、および第１の円弧状切削刃とは切削内径及び切削内径が異なるとともに、それぞれ断面円弧状の部分円筒形状を有し、フランジ部材２１０の板面に互いに円周方向に離間して配置される複数の第２の円弧状切削刃（円弧状切削刃２２０）が、選択的に脱着可能に構成されている。【選択図】図２
BORING DEVICE AND CUTTING BLADE
穿孔装置、および切削刃
INAGAKI HIROHISA (author)
2018-05-17
Patent
Electronic Resource
Japanese
BORING MACHINE COMPRISING A VARIABLE-GEOMETRY CUTTING DEVICE
| European Patent Office | 2024