DIFFERENTIAL GEAR DEVICE INCORPORATING INTERNAL MESHING TYPE PLANETARY REDUCTION GEAR

摘要

A differential gear device incorporating an internal meshing type planetary reduction gear has an externally toothed gear (14; 44) carried by a hollow input shaft (11, 41) through an eccentric member (12; 42) and an eccentric bearing (13; 43), an internally toothed gear (16; 45) meshing with the externally toothed gear, a differential gear box (19; 48) disposed adjacent to the externally toothed gear, and a hollow drive (21; 50) splined at its one end to the externally toothed gear and splined at its other end to the differential gear box. The device also has a left axle (24; 53) and a right axle (25; 54) one of which extends through the hollow input shaft.