| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To keep gears meshed in a good condition by suppressing or preventing a pinion shaft 54 from slanting even when an excessive torque is input, in a planetary gear device 50 having two or more pinion gears 53 supported on a carrier 55 with pinion shafts 54. <P>SOLUTION: The carrier 55 is configured to include a first support part 56 supporting one end side of each pinion shaft 54, a second support part 57 supporting the other end side of each pinion shaft 54, and a connecting part 58 connecting the first support part 56 and the second support part 57. After one end supported by one of the support parts in the pinion shaft 54 is set to a small diameter shaft part 54b, a recessed part 54d recessed from the step wall surface 54c between a body part 54a and the small diameter shaft part 54b toward the inside of the body part 54a is disposed in the body part 54a of the pinion shaft 54. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
