Patent ID: 6220107
Filing Date: 2001-04-24
Classification: F16H,Y10T

Abstract:
An eccentric orbiting type speed changing gear device, comprising:a casing having an internal gear at an inside periphery,three sheets of pinions held in the casing separately in an axial direction and formed on outside peripheries with external gears to be in mesh with the internal gear;a carrier having a pillar-like portion passing through the pinions in the axial direction; andan eccentric rotating means which causes one sheet of center pinion and two sheets of pinions positioned at both sides of said center pinion to perform eccentric rotations under a condition of deviating phases of said center pinion and both side pinions by 180 degree, wherein distances between a center line in the gear width of the center pinion and both center lines in the gear width of two sheets of both side pinions are substantially equal.