| 摘要 |
<p>The coupler is for a tape recorder and has a rotatable and a movable part, and the tripping criterion is reversing of direction of rotation of a rotatable part. A first rotatable part (1) has at least one flexible pawl (2), and a second movable part (3) has at least one blocking projection (4) and at least one springy element (5). The blocking projection (4) and the springy element (5) have sliding surfaces (8, 9) for the springy pawl, and the whole forms a type of a freewheeling device. The flexible pawl has three radial grooves (11) extending over short lengths of the circumference of the central part of the pawl.</p> |
