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PLANETARY GEAR REDUCER

  • US 20130310213A1
  • Filed: 11/15/2011
  • Published: 11/21/2013
  • Est. Priority Date: 11/25/2010
  • Status: Active Grant
First Claim
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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.

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