| 摘要 |
<p>The gong (1) has an end comprising a fixation element (1a) for fixing the end to a frame of a timepiece, where the gong is in the form of a bended blade having 0.2 millimeter thickness. A free part of the blade is conformed so that its natural vibration frequency is located in field of sound consecutive to a percussion exerted on a section of the free part. The fixation element and the blade constitute a single piece with uniform thickness.</p> |
