ROTARY BODY ENERGIZING MECHANISM

PURPOSE:To reduce the fluctuation of an impressing voltage on a rotary body by a method wherein the inner lace of a cylindrical roller bearing is fitted to the rotary shaft of a rotary body and a voltage impressing electrode is attached to the outer lace of the same while the voltage is impressed on the rotary body through the cylindrical roller bearing. CONSTITUTION:A bushing 52, provided on a shaft 22a, is attached to the driving shaft 26a of a motor through a plastic cross 53. A cylindrical roller bearing 54 is fitted to the bushing 52 while cylindrical rollers 54c are sealed between the inner lace 54a and the outer lace 54b of the cylindrical roller bearing 54. The bushing 52 is fitted to the inner lace 54a and a member 56 for attaching a rod is fixed to the outer lace 54b. A cable for conducting current from a power supply is pressed against an electrode nut 64 while the electrode nut 64 is attached to the rod 58 for conducting current, which is screwed to said rod attaching member 56. The voltage is impressed on the rotary body through the cylindrical roller bearing in such a manner whereby the fluctuation of the impressing voltage on the rotary body can be minimized even when the rotary body is rotated for a long period of time.