| 摘要 |
PROBLEM TO BE SOLVED: To prevent a weight part from vibrating differently from the vibration of a vibration arm part without following the vibration (amplitude) of the vibration arm part, thereby stabilizing the vibration of the vibration arm part and also stabilizing the vibration frequency of the vibration arm part.SOLUTION: A vibration piece of the present invention is provided with an intermediate weight part 4 formed by having an arm width W1 larger (thicker) than an arm width W of a vibration arm part 3 and smaller (thinner) than an arm width W2 of a tip weight part 5, the intermediate weight part 4 being made to follow the vibration (amplitude) of the vibration arm part 3. Furthermore, since the vibration piece is provided with the tip weight part 5 formed by having an arm width W2 larger (thicker) than the arm width W1 of the intermediate weight part 4, and the tip weight part 5 is made to follow the vibration (amplitude) of the vibration arm part 3 and the intermediate weight part 4, the vibration characteristic of the vibration arm part 3 can be stabilized. |
