ECCENTRICALLY SWINGING REDUCER DEVICE

摘要

An eccentrically swinging reducer device is provided to reduce the length of axial direction by arranging an eccentric center driver at the same axial direction position of a distance piece. An eccentrically swinging reducer device comprises a sun gear(116); a transmission gear(118) rotated by the sun gear; an eccentric center driver(120) which is rotated integrally with the transmission gear; a fluctuation gear(124A) rotated by the eccentric center driver; a first and second carriers(134) moving with the rotation components of the fluctuation gear; a distance piece(125) which is arranged at the same axial position as the transmission gear and controls the axial direction movement of the fluctuation gear. The distance piece is arranged at a gap of an internal gear(128).