| 摘要 |
<p>An apparatus for unreeling a thread, such as an optical fibre, comprising a supporting means (3) for rotatably supporting a reel (4), and a braking means (2) for braking the rotation of the reel. In order to achieve a high initial tension (F2) for the thread (8) to be unreeled with a low unreeling tension (F1), the apparatus comprises a brake wheel (6) which receives a thread (8) unwound from the reel, the brake wheel being connected to the reel by means of the braking means (2) in such a way that the reel and the brake wheel rotate in opposite directions.</p> |
