| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe body gripping mechanism which is simple, can pull up a double pipe body structure at once and can simplify a pipe body removal process or the like. ! SOLUTION: A pipe body gripping mechanism 10 for gripping a pipe body (P1, P2) includes: plural outer pipe gripping claws 130 which rotate around a fulcrum provided on a first circle as a center; plural inner pipe gripping claws 130 which rotate around a fulcrum provided on a second circle, which is present on an inner periphery of the first circle, as a center; an annular cam member 400 which contacts the outer pipe gripping claw 130 at an outside profile part 410 and contacts the inner pipe gripping claw 230 at an inside profile part 420; and a cylinder 450 for the annular cam member which lifts said annular cam member 400. ! COPYRIGHT: (C)2015,JPO&INPIT |
