摘要 |
Through holes are formed in a revolving gear which revolves while being engaged with a ring gear, and penetration pins for extracting rotation of the revolving gear are inserted in the through holes. The inner circumference of each through hole has a shape which becomes narrow toward its one end. A sliding member having a shape which becomes thin toward its one end is engaged with each penetration pin. The sliding member is biased in a tapered direction thereof by a biasing member to be in contact with the inner circumference of the through hole.
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