Patent ID: 11927260
Assignee: ENPLAS CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A planetary gear device, comprising:
at least two stages of planetary gear mechanisms that each comprises:
a sun gear;
one or more planetary gears, arranged on the periphery of the sun gear, for meshing with the sun gear; and
a carrier that supports the one or more planetary gears rotatably,
wherein a first stage of the at least two stages of planetary gear mechanisms configured to operate at a higher speed comprises an apparatus for suppressing noise produced in the planetary gear device of claim 1,
wherein the one or more planetary gears of the planetary gear mechanism and the inner gear are configured to mesh, and
wherein a second stage of the planetary gear mechanism configured to operate at a lower speed comprises a second housing wherein inner teeth configured to mesh with the one or more planetary gears of the planetary gear mechanism are formed on an inner peripheral surface of the second housing.