| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary shaft support structure of planetary gears which facilitates to increase the number of planetary gears arranged in a planetary gear mechanism. <P>SOLUTION: In this rotary shaft support structure of planetary gears, each planetary gear includes a ball 1 (1), a ball 2 (2), and a gear (5) formed, at both ends of a rotation center, with a spherical depression (3) to make the ball 1 (1) perform tumbling motion and a spherical depression (4) to make the ball 2 (2) perform tumbling motion; in a retainer, a retainer member 1 (6) which retains a plurality of planetary gears in the same circumferential form, at appropriate intervals and at correct positions to prevent them from contacting one another and is formed with through-holes to make the balls 1 (1) perform tumbling motion is connected to a retainer member 2 (7) which retains the plurality of planetary gears in the same circumferential form, at appropriate intervals and at correct positions to prevent them from contacting one another and is formed with through-holes to make the balls 2 (2) perform tumbling motion; and the plurality of planetary gears are supported by the single retainer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
