| 摘要 |
<p>The vibration system (1) has a vibrating body (2), a balance wheel shaft (3) pivotally mounted about an axis and a spiral spring (4) with an active vibration portion, where the spiral spring is connected with the balance wheel shaft by a spiral spring fastening section enclosing the balance wheel shaft. The spiral spring is held at an outer spring holding point. The active vibration area is extended from an inner end of the active vibration area to the spring holding point.</p> |
