Crane

摘要

A fleet angle of a rope is suppressed to be small while employing a side drum type in which a winch drum is installed sideway of a boom. A drum arranging plane A which is a plane perpendicular to a drum shaft 6a passing through an axial center point Wo of a winch drum shaft 6a is inclined with respect to a boom moving plane so that a rope contact of a main guide sheave 8 includes two points P1 and P2 formed on a boom moving plane B by the raising and lowering of a boom 2.