LOAD TORQUE RIPPLE DEVICE FOR OSCILLATORY WAVE MOTORS, AND IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To achieve the longer life of an oscillatory wave motor by preventing the same contact state from lasting in a rotor and a stator by adding structural features to a rotating member provided in the rotor so as to suppress biased abrasion.;SOLUTION: This load torque ripple device 500 for oscillatory wave motors is constituted of: an eccentric cam 1302, which is provided on a shaft 405 rotating with an oscillatory wave motor M and changes the magnitude of load torque working on the shaft 405 with the rotational phase of the shaft 405; an arm 1303; an energizing spring 1402; and a one-way clutch 1301, which changes the cycle of the load torque working on the shaft 405 to the rotational cycle of the shaft 405.;COPYRIGHT: (C)2010,JPO&INPIT