| 摘要 |
<p>The escapement has an escape wheel (1) equipped with 16 teeth (2), and a pallet (3) equipped with input and output pallet forks (4, 5). The input and the output pallet forks have pulse surfaces (10) whose angular lengths are greater than 7.5 degrees respectively. The angular length (Ls) of the surface of the output pallet fork is measured from a center (C1) of the escape wheel and in a position where a rest tip of the teeth is in contact with a rest tip of the output pallet fork.</p> |
