| 摘要 |
PROBLEM TO BE SOLVED: To reduce labor for work for stabilizing a posture of a balance in a speed governor.SOLUTION: A speed governor 20 comprises a first magnet 40 (an example of permanent magnet) disposed facing on the side of a balance holder 62 at a balance wheel 33 of a balance 30 supported by a bottom board 61 and the balance holder 62 and a second magnet 50 (an example of magnet substance) disposed in a range where it faces the first magnet 40 when the balance 30 performs periodic motion. A posture of the balance 30 with respect to the bottom board 61 and the balance holder 62 is constantly maintained with the magnetic force between the first magnet 40 and the second magnet 50.SELECTED DRAWING: Figure 2 |
