Patent ID: 6023596
Filing Date: 2000-02-08
Classification: F16D,G03G

Abstract:
A driving apparatus to transmit driving power to an image carrying member in an image forming apparatus, comprising:a driving gear to output the driving power and having a first end face;a flywheel coupled with the image carrying member and having a second end face opposite to the first end face of the driving gear;a rigid protrusion fixed on one of the first end face and the second end face; andan elastic member fixed on the other one of the first end face and the second end face, the elastic member shaped so as to engage with the rigid protrusion so that the driving power is transmitted from the driving gear to the image carrying member through the engaging portion between the rigid protrusion and the elastic member, the elastic member comprisinga first member, provided in contact with the rigid protrusion at the engaging portion, for elastically deforming itself so as to control a natural frequency value of a driving system including said rotating body; anda second member for controlling damping characteristics of said driving system.