| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized oscillation generator which resonates at two different frequencies. SOLUTION: A movable base 10 is accommodated in a casing 2. The movable base 10 has an installation plate part 11 and support plate parts 12a, 12b perpendicularly bent from both the ends of the installation plate part. A first elastic deformation part 14 is integrally formed in the installation plate part 11, and a weight body 20 is supported by the first elastic deformation part 14. In the movable base 10, a second elastic deformation part 15 is installed between the installation plate part 11 and the support plate parts 12a, 12b, and the support plate parts 12a, 12b are fixed to the support end plates 3a, 3b of the casing 2. The bending modulus of elasticity of the second elastic deformation part 15 is higher than that of the first elastic deformation part 14, and when a driving force is given to the weight body 20 from a magnetic driving part 30, the weight body 20 resonates at two characteristic frequencies. COPYRIGHT: (C)2008,JPO&INPIT
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