| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device of an opening and closing body capable of making an offensive high-pitched noise in door operation sound to be hardly heard. <P>SOLUTION: The door operation sound includes a motor operation sound generated in driving of a motor 10, and a vibration transmission sound generated by transmitting of vibration generated in driving of the motor 10 to an inner panel PL through a regulator 30, and a first order component of a vibration frequency of the motor 10 is larger than n-th order component (n≥integer of 2) so that a first order component of a frequency of the door operation sound is larger than n-th order component (n≥integer of 2). <P>COPYRIGHT: (C)2009,JPO&INPIT |
