| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration motor constituted so as to generate two kinds of vibrations. SOLUTION: The vibration motor 1 is constituted so that a guide passage 22 is formed in a weight 6 and a rolling body 21 rolls between one end 22a and other end 22b of the guide passage 22. Further, in order to generate two kinds of vibrations by the vibration motor 1, the distance L from the center P of rotation of an output shaft 3 to one end 22a of the guide passage 22 and the distance H from the center P of rotation of the output shaft 3 to the other end 22b of the passage 22 are differentiated in the centrifugal force direction of the weight 6. Therefore, the center-of-gravity position of the weight 6 is changed by the forward and reverse rotations of the output shaft 3 and two kinds of vibrations using the weight 6 can be obtained by appropriately changing over the forward and reverse rotations of the output shaft 3 if necessary. COPYRIGHT: (C)2004,JPO
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