| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving transmission device that reduces oscillation and rotation irregularity even if an installation error and a component error are generated between a driving shaft and a rotated member.SOLUTION: A driving transmission device 40 has a two-step spline coupling in which a driving side coupling 50 including a male spline 52 and a driven side coupling 60 including a male spline 62 are connected to each other with an intermediate transmission member 70 including female splines 72, 73. A partition wall 74 is formed between the splines 72, 73 of the driven side coupling 60, and hemispherical projections 75, 76 brought into point contact with the driving side coupling 50 and the driven side coupling 60 are formed. |
