| 摘要 |
PROBLEM TO BE SOLVED: To provide a tuning fork type vibration pieces which can be miniaturized and the characteristic of which can be stabilized. SOLUTION: In the tuning fork type vibration pieces 10 comprising: a base 11; vibration arms 12, 13 formed to the base 11 and projected therefrom; and grooves 14, 15 formed on the front side and the rear side of the vibration arms 12, 13, and a cut groove 16 with a prescribed area and a prescribed depth is provided to the base 11. Even when a vibration with a vertical component is caused in the case of a vibrating state of the vibration arms 12, 13, the cut groove 16 can relax leakage of the vibration of the vibration arms 12, 13 to the base 11, and since part of the base 11 is left in the cut groove 16 to configure a rib 17, the rigidity is increased so as to furthermore reduce the leakage of the vibration with the vertical component. COPYRIGHT: (C)2004,JPO&NCIPI
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