| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating body driving device capable of suppressing the occurrence of fluctuation in rotational speed and the occurrence of vibration in a rotating body and a driving source due to a deflection angle between the rotary shaft of the rotating body and the driving shaft of the driving source, with inexpensive and simple structure.SOLUTION: A rotating body driving device 50 is provided that includes a rotating body 1 and a driving shaft 51a for rotationally driving the rotating body 1 with driving force from a driving source 51, and that rotates the rotating body by connecting and fixing a rotary shaft 1a of the rotating body and the driving shaft. The driving source is fixed to an image forming apparatus body through a support member 70 being an elastic body. The support member has a single plate shape and includes torsion parts 71a, 71b, 72a, 72b having lower torsional rigidity than rigidities of the rotary shaft, the driving shaft and support places 101, 102 of the image forming apparatus body supporting the rotary shaft and the driving shaft, and the support member can deform in a torsion direction.SELECTED DRAWING: Figure 5 |
