| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable gear device in which in the case a backlash is allowed to be relatively large, a tooth contact impact when a tooth surface contacts is buffered, and further a coaxiality accuracy is kept between a gear and a gear shaft, tooth contact noise of the gear and engaging noise are decreased, thereby a tooth surface damage due to a biased contact etc. is not caused, and the gear does not fall off by variable load in a shaft direction, regarding a device in which an amplitude of a vibrational torque transmitted by a gear is higher than a static torque.SOLUTION: There is provided an engine balancer comprised of a drive gear 3, a drive shaft 1 and a driven gear 4 and comprised of a gear pair having the drive gear 3 and the driven gear 4 engaged to each other in which the drive gear 3 is fitted to the drive shaft 1 and there is provided a fixture for elastically fixing the drive gear 3 and the drive shaft 1 to each other. |
