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US 9,851,373 B2Granted
Vibrator and vibrating gyroscope
AssigneeMurata Manufacturing Co., Ltd.
InventorsKatsumi Fujimoto, Toshimaro Yoneda, Takuo Hada, Hideya Horiuchi
Life of this patent
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Abstract
A vibrator in a vibrating gyroscope includes a circular annular portion, a rectangular annular portion, and joining portions. The rectangular annular portion is disposed adjacent to an outer side of the circular annular portion. The joining portions join the circular annular portion and the rectangular annular portion. The rectangular annular portion includes linear beam portions. The joining portions join the circular annular portion and the center portions of the beam portions to each other.
Claims15
A vibrator comprising:
- a circular annular portion;
- a rectangular annular portion located adjacent to an outer side of the circular annular portion;
- joining portions arranged to join the circular annular portion and the rectangular annular portion to each other;
- cantilever beam portions that extend from joining positions at which the joining portions are connected to the circular annular portion towards an inner side of the circular annular portion in a radial direction;
- and
- weight portions having planar sector shapes that are zoned by aperture portions;
- wherein
- the rectangular annular portion includes beam portions joined to each other;
- the joining portions join the circular annular portion and a center portion of the beam portions to each other;
- the aperture portions include portions that divide the weight portions, are defined by parallel or substantially parallel adjacent surfaces of the weight portions that face each other, and are parallel or substantially parallel to diagonal lines that connect corners of the rectangular annular portion;
- and
- the weight portions are connected to end portions of the cantilever beam portions.
9 more elements
Dependencies are inferred from the claim text.