DRIVE FORCE TRANSMITTING DEVICE, IMAGING DEVICE, AND DEVELOPING DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress transmission of vibration in a drive force transmitting device using a spline. SOLUTION: A first female spline part 1 and a second female spline part 2 have teeth 3 formed over an inner peripheral surface centering around a rotary shaft. An intermediate spline 4 has teeth 5 formed over an outer peripheral surface centering around the rotary shaft. The intermediate spline 4 is fitted in the first female spline part 1 and the second spline part 2 with a play in the radial direction. An elastic member 8 is mounted on the first female spline part 1. A drive force transmission member 9 is mounted on a shaft 10. A drive force transmission pin 11 situated at the drive force transmission member 9 makes contact with the elastic member 8 and a drive force is transmitted through the elastic member 8 between the first female spline 2 and the shaft 10.