| 摘要 |
<p>Security screw (1), formed by a cylinder part (3) divided in two parts, (1a) y (1b), in the threaded area (4), with a division line (6) in a partial way of the axial axle (7) or very close to it. In one of these parts (1", 1b) a cylinder area (8) has been removed, coaxial (manx, eccentricity: 1% of the radius of the thread), with the result that both parts can be moved between themselves, with the thread lined up or not lined up depending on the function of the angle position. Depending on the removed area (8) position, the nut (5) can be threaded or unscrewed. In addition, means are foreseen to unblock the nut (5), by immobilizing these parts (1a, 1b) in the corresponding angle position according to the lining up of the threads.</p> |
