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REMOVING LIFTER FOR MATTER CUT AND REMOVED FROM ROAD SURFACE AROUND MANHOLE, INCLINING LIFT CONSTRUCTION METHOD AND REMOVING LIFT CONSTRUCTION METHOD
REMOVING LIFTER FOR MATTER CUT AND REMOVED FROM ROAD SURFACE AROUND MANHOLE, INCLINING LIFT CONSTRUCTION METHOD AND REMOVING LIFT CONSTRUCTION METHOD
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机译：切屑提升板和周围人孔路面的去除方法，包括提升构造法和提升构造法
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摘要
PROBLEM TO BE SOLVED: To provide a removing lifter and a removing lift construction method for moving a manhole cover frame and the road surface therearound in the form of an integral block, while sliding, to an easily liftable state by a minimized lifting means.;SOLUTION: This lifter cuts the road surface around a manhole by rotating the manhole 360° about the center using an arcuate or curved cutter, and removes annular matters to be removed having a cutting surface of circular shape in plan view and three-dimensionally spherical surface shape by lifting. A groove hole 2 is provided to a bar-shaped body 1 in the longitudinal direction, and one or more movable and fixable hooking pieces 3 are disposed in the groove hole 2. The required section inside the manhole is hooked directly by the hooking pieces 3 or through auxiliary hooking pieces. A hooking part 12 for lifting is provided to the end of the bar-like body 1, and the lifting means is disposed between the hooking part and the road surface.;COPYRIGHT: (C)2010,JPO&INPIT
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