Patent ID: 8968148
Filing Date: 2015-03-03
Classification: F16H

Abstract:
1. A planetary gear reducer comprising: a sun gear fixed concentrically to a power input shaft; a ring gear provided along an outer periphery of the sun gear; a plurality of planet gears meshing with the sun gear and the ring gear; a plurality of planet shafts, each of which is a rotational axis of a corresponding one of the plurality of planet gears; a planet carrier configured to support the plurality of planet shafts, and to output revolution of the plurality of planet gears around the input shaft as first power; and a cylindrical support including, at its one part along a direction of a central axis of the input shaft, a flexible structure which is curved radially inward and has a V-shaped longitudinal section, the cylindrical support being connected to the ring gear such that the cylindrical support is non-rotatable relative to the ring gear, the cylindrical support being configured to output rotation of the ring gear as second power.