VIBRATION PIECE, VIBRATOR, OSCILLATOR, REAL TIME CLOCK, ELECTRONIC APPARATUS AND MOVING BODY

摘要

PROBLEM TO BE SOLVED: To provide a compact vibration piece capable of mitigating a stress concentrated at a border between a vibration arm and a base, when an impact from the outside deforms the vibration arm in a thickness direction.SOLUTION: A vibration piece 100 includes: a base 10; a pair of vibration arms 20a, 20b extending from the base 10; and a support arm 30 extending from the base 10 and disposed between the pair of vibration arms 20a, 20b. A width P at a border between the support arm 30 and the base 10 is smaller than a width Q at a border between the vibration arms 20a, 20b and the base 10. The mount part 36 of the support arm 30 is disposed closer to the tip side of the support arm 30 than the centroid G of the vibration piece 100.SELECTED DRAWING: Figure 1